Which of the following is the rational exponent expression of fifth root of 7 n ? (2 points) 5n7 (7n)5 7 times n to the one fifth power quantity of 7n to the one fifth power

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?